diff options
Diffstat (limited to 'drivers/media/i2c/tvaudio.c')
| -rw-r--r-- | drivers/media/i2c/tvaudio.c | 2062 |
1 files changed, 2062 insertions, 0 deletions
diff --git a/drivers/media/i2c/tvaudio.c b/drivers/media/i2c/tvaudio.c new file mode 100644 index 000000000..070c152da --- /dev/null +++ b/drivers/media/i2c/tvaudio.c @@ -0,0 +1,2062 @@ +/* + * Driver for simple i2c audio chips. + * + * Copyright (c) 2000 Gerd Knorr + * based on code by: + * Eric Sandeen (eric_sandeen@bigfoot.com) + * Steve VanDeBogart (vandebo@uclink.berkeley.edu) + * Greg Alexander (galexand@acm.org) + * + * For the TDA9875 part: + * Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source + * and Eric Sandeen + * + * Copyright(c) 2005-2008 Mauro Carvalho Chehab + * - Some cleanups, code fixes, etc + * - Convert it to V4L2 API + * + * This code is placed under the terms of the GNU General Public License + * + * OPTIONS: + * debug - set to 1 if you'd like to see debug messages + * + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kthread.h> +#include <linux/freezer.h> + +#include <media/tvaudio.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> + +#include <media/i2c-addr.h> + +/* ---------------------------------------------------------------------- */ +/* insmod args */ + +static int debug; /* insmod parameter */ +module_param(debug, int, 0644); + +MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips"); +MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr"); +MODULE_LICENSE("GPL"); + +#define UNSET (-1U) + +/* ---------------------------------------------------------------------- */ +/* our structs */ + +#define MAXREGS 256 + +struct CHIPSTATE; +typedef int (*getvalue)(int); +typedef int (*checkit)(struct CHIPSTATE*); +typedef int (*initialize)(struct CHIPSTATE*); +typedef int (*getrxsubchans)(struct CHIPSTATE *); +typedef void (*setaudmode)(struct CHIPSTATE*, int mode); + +/* i2c command */ +typedef struct AUDIOCMD { + int count; /* # of bytes to send */ + unsigned char bytes[MAXREGS+1]; /* addr, data, data, ... */ +} audiocmd; + +/* chip description */ +struct CHIPDESC { + char *name; /* chip name */ + int addr_lo, addr_hi; /* i2c address range */ + int registers; /* # of registers */ + + int *insmodopt; + checkit checkit; + initialize initialize; + int flags; +#define CHIP_HAS_VOLUME 1 +#define CHIP_HAS_BASSTREBLE 2 +#define CHIP_HAS_INPUTSEL 4 +#define CHIP_NEED_CHECKMODE 8 + + /* various i2c command sequences */ + audiocmd init; + + /* which register has which value */ + int leftreg, rightreg, treblereg, bassreg; + + /* initialize with (defaults to 65535/32768/32768 */ + int volinit, trebleinit, bassinit; + + /* functions to convert the values (v4l -> chip) */ + getvalue volfunc, treblefunc, bassfunc; + + /* get/set mode */ + getrxsubchans getrxsubchans; + setaudmode setaudmode; + + /* input switch register + values for v4l inputs */ + int inputreg; + int inputmap[4]; + int inputmute; + int inputmask; +}; + +/* current state of the chip */ +struct CHIPSTATE { + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; + struct { + /* volume/balance cluster */ + struct v4l2_ctrl *volume; + struct v4l2_ctrl *balance; + }; + + /* chip-specific description - should point to + an entry at CHIPDESC table */ + struct CHIPDESC *desc; + + /* shadow register set */ + audiocmd shadow; + + /* current settings */ + u16 muted; + int prevmode; + int radio; + int input; + + /* thread */ + struct task_struct *thread; + struct timer_list wt; + int audmode; +}; + +static inline struct CHIPSTATE *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct CHIPSTATE, sd); +} + +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct CHIPSTATE, hdl)->sd; +} + + +/* ---------------------------------------------------------------------- */ +/* i2c I/O functions */ + +static int chip_write(struct CHIPSTATE *chip, int subaddr, int val) +{ + struct v4l2_subdev *sd = &chip->sd; + struct i2c_client *c = v4l2_get_subdevdata(sd); + unsigned char buffer[2]; + + if (subaddr < 0) { + v4l2_dbg(1, debug, sd, "chip_write: 0x%x\n", val); + chip->shadow.bytes[1] = val; + buffer[0] = val; + if (1 != i2c_master_send(c, buffer, 1)) { + v4l2_warn(sd, "I/O error (write 0x%x)\n", val); + return -1; + } + } else { + if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { + v4l2_info(sd, + "Tried to access a non-existent register: %d\n", + subaddr); + return -EINVAL; + } + + v4l2_dbg(1, debug, sd, "chip_write: reg%d=0x%x\n", + subaddr, val); + chip->shadow.bytes[subaddr+1] = val; + buffer[0] = subaddr; + buffer[1] = val; + if (2 != i2c_master_send(c, buffer, 2)) { + v4l2_warn(sd, "I/O error (write reg%d=0x%x)\n", + subaddr, val); + return -1; + } + } + return 0; +} + +static int chip_write_masked(struct CHIPSTATE *chip, + int subaddr, int val, int mask) +{ + struct v4l2_subdev *sd = &chip->sd; + + if (mask != 0) { + if (subaddr < 0) { + val = (chip->shadow.bytes[1] & ~mask) | (val & mask); + } else { + if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { + v4l2_info(sd, + "Tried to access a non-existent register: %d\n", + subaddr); + return -EINVAL; + } + + val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask); + } + } + return chip_write(chip, subaddr, val); +} + +static int chip_read(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + struct i2c_client *c = v4l2_get_subdevdata(sd); + unsigned char buffer; + + if (1 != i2c_master_recv(c, &buffer, 1)) { + v4l2_warn(sd, "I/O error (read)\n"); + return -1; + } + v4l2_dbg(1, debug, sd, "chip_read: 0x%x\n", buffer); + return buffer; +} + +static int chip_read2(struct CHIPSTATE *chip, int subaddr) +{ + struct v4l2_subdev *sd = &chip->sd; + struct i2c_client *c = v4l2_get_subdevdata(sd); + unsigned char write[1]; + unsigned char read[1]; + struct i2c_msg msgs[2] = { + { + .addr = c->addr, + .len = 1, + .buf = write + }, + { + .addr = c->addr, + .flags = I2C_M_RD, + .len = 1, + .buf = read + } + }; + + write[0] = subaddr; + + if (2 != i2c_transfer(c->adapter, msgs, 2)) { + v4l2_warn(sd, "I/O error (read2)\n"); + return -1; + } + v4l2_dbg(1, debug, sd, "chip_read2: reg%d=0x%x\n", + subaddr, read[0]); + return read[0]; +} + +static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd) +{ + struct v4l2_subdev *sd = &chip->sd; + struct i2c_client *c = v4l2_get_subdevdata(sd); + int i; + + if (0 == cmd->count) + return 0; + + if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) { + v4l2_info(sd, + "Tried to access a non-existent register range: %d to %d\n", + cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1); + return -EINVAL; + } + + /* FIXME: it seems that the shadow bytes are wrong bellow !*/ + + /* update our shadow register set; print bytes if (debug > 0) */ + v4l2_dbg(1, debug, sd, "chip_cmd(%s): reg=%d, data:", + name, cmd->bytes[0]); + for (i = 1; i < cmd->count; i++) { + if (debug) + printk(KERN_CONT " 0x%x", cmd->bytes[i]); + chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i]; + } + if (debug) + printk(KERN_CONT "\n"); + + /* send data to the chip */ + if (cmd->count != i2c_master_send(c, cmd->bytes, cmd->count)) { + v4l2_warn(sd, "I/O error (%s)\n", name); + return -1; + } + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* kernel thread for doing i2c stuff asyncronly + * right now it is used only to check the audio mode (mono/stereo/whatever) + * some time after switching to another TV channel, then turn on stereo + * if available, ... + */ + +static void chip_thread_wake(unsigned long data) +{ + struct CHIPSTATE *chip = (struct CHIPSTATE*)data; + wake_up_process(chip->thread); +} + +static int chip_thread(void *data) +{ + struct CHIPSTATE *chip = data; + struct CHIPDESC *desc = chip->desc; + struct v4l2_subdev *sd = &chip->sd; + int mode, selected; + + v4l2_dbg(1, debug, sd, "thread started\n"); + set_freezable(); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (!kthread_should_stop()) + schedule(); + set_current_state(TASK_RUNNING); + try_to_freeze(); + if (kthread_should_stop()) + break; + v4l2_dbg(1, debug, sd, "thread wakeup\n"); + + /* don't do anything for radio */ + if (chip->radio) + continue; + + /* have a look what's going on */ + mode = desc->getrxsubchans(chip); + if (mode == chip->prevmode) + continue; + + /* chip detected a new audio mode - set it */ + v4l2_dbg(1, debug, sd, "thread checkmode\n"); + + chip->prevmode = mode; + + selected = V4L2_TUNER_MODE_MONO; + switch (chip->audmode) { + case V4L2_TUNER_MODE_MONO: + if (mode & V4L2_TUNER_SUB_LANG1) + selected = V4L2_TUNER_MODE_LANG1; + break; + case V4L2_TUNER_MODE_STEREO: + case V4L2_TUNER_MODE_LANG1: + if (mode & V4L2_TUNER_SUB_LANG1) + selected = V4L2_TUNER_MODE_LANG1; + else if (mode & V4L2_TUNER_SUB_STEREO) + selected = V4L2_TUNER_MODE_STEREO; + break; + case V4L2_TUNER_MODE_LANG2: + if (mode & V4L2_TUNER_SUB_LANG2) + selected = V4L2_TUNER_MODE_LANG2; + else if (mode & V4L2_TUNER_SUB_STEREO) + selected = V4L2_TUNER_MODE_STEREO; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + if (mode & V4L2_TUNER_SUB_LANG2) + selected = V4L2_TUNER_MODE_LANG1_LANG2; + else if (mode & V4L2_TUNER_SUB_STEREO) + selected = V4L2_TUNER_MODE_STEREO; + } + desc->setaudmode(chip, selected); + + /* schedule next check */ + mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000)); + } + + v4l2_dbg(1, debug, sd, "thread exiting\n"); + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda9840 */ + +#define TDA9840_SW 0x00 +#define TDA9840_LVADJ 0x02 +#define TDA9840_STADJ 0x03 +#define TDA9840_TEST 0x04 + +#define TDA9840_MONO 0x10 +#define TDA9840_STEREO 0x2a +#define TDA9840_DUALA 0x12 +#define TDA9840_DUALB 0x1e +#define TDA9840_DUALAB 0x1a +#define TDA9840_DUALBA 0x16 +#define TDA9840_EXTERNAL 0x7a + +#define TDA9840_DS_DUAL 0x20 /* Dual sound identified */ +#define TDA9840_ST_STEREO 0x40 /* Stereo sound identified */ +#define TDA9840_PONRES 0x80 /* Power-on reset detected if = 1 */ + +#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */ +#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */ + +static int tda9840_getrxsubchans(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int val, mode; + + val = chip_read(chip); + mode = V4L2_TUNER_SUB_MONO; + if (val & TDA9840_DS_DUAL) + mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + if (val & TDA9840_ST_STEREO) + mode = V4L2_TUNER_SUB_STEREO; + + v4l2_dbg(1, debug, sd, + "tda9840_getrxsubchans(): raw chip read: %d, return: %d\n", + val, mode); + return mode; +} + +static void tda9840_setaudmode(struct CHIPSTATE *chip, int mode) +{ + int update = 1; + int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e; + + switch (mode) { + case V4L2_TUNER_MODE_MONO: + t |= TDA9840_MONO; + break; + case V4L2_TUNER_MODE_STEREO: + t |= TDA9840_STEREO; + break; + case V4L2_TUNER_MODE_LANG1: + t |= TDA9840_DUALA; + break; + case V4L2_TUNER_MODE_LANG2: + t |= TDA9840_DUALB; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + t |= TDA9840_DUALAB; + break; + default: + update = 0; + } + + if (update) + chip_write(chip, TDA9840_SW, t); +} + +static int tda9840_checkit(struct CHIPSTATE *chip) +{ + int rc; + rc = chip_read(chip); + /* lower 5 bits should be 0 */ + return ((rc & 0x1f) == 0) ? 1 : 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda985x */ + +/* subaddresses for TDA9855 */ +#define TDA9855_VR 0x00 /* Volume, right */ +#define TDA9855_VL 0x01 /* Volume, left */ +#define TDA9855_BA 0x02 /* Bass */ +#define TDA9855_TR 0x03 /* Treble */ +#define TDA9855_SW 0x04 /* Subwoofer - not connected on DTV2000 */ + +/* subaddresses for TDA9850 */ +#define TDA9850_C4 0x04 /* Control 1 for TDA9850 */ + +/* subaddesses for both chips */ +#define TDA985x_C5 0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */ +#define TDA985x_C6 0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */ +#define TDA985x_C7 0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */ +#define TDA985x_A1 0x08 /* Alignment 1 for both chips */ +#define TDA985x_A2 0x09 /* Alignment 2 for both chips */ +#define TDA985x_A3 0x0a /* Alignment 3 for both chips */ + +/* Masks for bits in TDA9855 subaddresses */ +/* 0x00 - VR in TDA9855 */ +/* 0x01 - VL in TDA9855 */ +/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f) + * in 1dB steps - mute is 0x27 */ + + +/* 0x02 - BA in TDA9855 */ +/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19) + * in .5dB steps - 0 is 0x0E */ + + +/* 0x03 - TR in TDA9855 */ +/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb) + * in 3dB steps - 0 is 0x7 */ + +/* Masks for bits in both chips' subaddresses */ +/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */ +/* Unique to TDA9855: */ +/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf) + * in 3dB steps - mute is 0x0 */ + +/* Unique to TDA9850: */ +/* lower 4 bits control stereo noise threshold, over which stereo turns off + * set to values of 0x00 through 0x0f for Ster1 through Ster16 */ + + +/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/ +/* Unique to TDA9855: */ +#define TDA9855_MUTE 1<<7 /* GMU, Mute at outputs */ +#define TDA9855_AVL 1<<6 /* AVL, Automatic Volume Level */ +#define TDA9855_LOUD 1<<5 /* Loudness, 1==off */ +#define TDA9855_SUR 1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */ + /* Bits 0 to 3 select various combinations + * of line in and line out, only the + * interesting ones are defined */ +#define TDA9855_EXT 1<<2 /* Selects inputs LIR and LIL. Pins 41 & 12 */ +#define TDA9855_INT 0 /* Selects inputs LOR and LOL. (internal) */ + +/* Unique to TDA9850: */ +/* lower 4 bits contol SAP noise threshold, over which SAP turns off + * set to values of 0x00 through 0x0f for SAP1 through SAP16 */ + + +/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */ +/* Common to TDA9855 and TDA9850: */ +#define TDA985x_SAP 3<<6 /* Selects SAP output, mute if not received */ +#define TDA985x_MONOSAP 2<<6 /* Selects Mono on left, SAP on right */ +#define TDA985x_STEREO 1<<6 /* Selects Stereo ouput, mono if not received */ +#define TDA985x_MONO 0 /* Forces Mono output */ +#define TDA985x_LMU 1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */ + +/* Unique to TDA9855: */ +#define TDA9855_TZCM 1<<5 /* If set, don't mute till zero crossing */ +#define TDA9855_VZCM 1<<4 /* If set, don't change volume till zero crossing*/ +#define TDA9855_LINEAR 0 /* Linear Stereo */ +#define TDA9855_PSEUDO 1 /* Pseudo Stereo */ +#define TDA9855_SPAT_30 2 /* Spatial Stereo, 30% anti-phase crosstalk */ +#define TDA9855_SPAT_50 3 /* Spatial Stereo, 52% anti-phase crosstalk */ +#define TDA9855_E_MONO 7 /* Forced mono - mono select elseware, so useless*/ + +/* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF) + * in .5dB steps - 0dB is 0x7 */ + +/* 0x08, 0x09 - A1 and A2 (read/write) */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 5 bites are wideband and spectral expander alignment + * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */ +#define TDA985x_STP 1<<5 /* Stereo Pilot/detect (read-only) */ +#define TDA985x_SAPP 1<<6 /* SAP Pilot/detect (read-only) */ +#define TDA985x_STS 1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/ + +/* 0x0a - A3 */ +/* Common to both TDA9855 and TDA9850: */ +/* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1), + * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */ +#define TDA985x_ADJ 1<<7 /* Stereo adjust on/off (wideband and spectral */ + +static int tda9855_volume(int val) { return val/0x2e8+0x27; } +static int tda9855_bass(int val) { return val/0xccc+0x06; } +static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; } + +static int tda985x_getrxsubchans(struct CHIPSTATE *chip) +{ + int mode, val; + + /* Add mono mode regardless of SAP and stereo */ + /* Allows forced mono */ + mode = V4L2_TUNER_SUB_MONO; + val = chip_read(chip); + if (val & TDA985x_STP) + mode = V4L2_TUNER_SUB_STEREO; + if (val & TDA985x_SAPP) + mode |= V4L2_TUNER_SUB_SAP; + return mode; +} + +static void tda985x_setaudmode(struct CHIPSTATE *chip, int mode) +{ + int update = 1; + int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f; + + switch (mode) { + case V4L2_TUNER_MODE_MONO: + c6 |= TDA985x_MONO; + break; + case V4L2_TUNER_MODE_STEREO: + case V4L2_TUNER_MODE_LANG1: + c6 |= TDA985x_STEREO; + break; + case V4L2_TUNER_MODE_SAP: + c6 |= TDA985x_SAP; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + c6 |= TDA985x_MONOSAP; + break; + default: + update = 0; + } + if (update) + chip_write(chip,TDA985x_C6,c6); +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda9873h */ + +/* Subaddresses for TDA9873H */ + +#define TDA9873_SW 0x00 /* Switching */ +#define TDA9873_AD 0x01 /* Adjust */ +#define TDA9873_PT 0x02 /* Port */ + +/* Subaddress 0x00: Switching Data + * B7..B0: + * + * B1, B0: Input source selection + * 0, 0 internal + * 1, 0 external stereo + * 0, 1 external mono + */ +#define TDA9873_INP_MASK 3 +#define TDA9873_INTERNAL 0 +#define TDA9873_EXT_STEREO 2 +#define TDA9873_EXT_MONO 1 + +/* B3, B2: output signal select + * B4 : transmission mode + * 0, 0, 1 Mono + * 1, 0, 0 Stereo + * 1, 1, 1 Stereo (reversed channel) + * 0, 0, 0 Dual AB + * 0, 0, 1 Dual AA + * 0, 1, 0 Dual BB + * 0, 1, 1 Dual BA + */ + +#define TDA9873_TR_MASK (7 << 2) +#define TDA9873_TR_MONO 4 +#define TDA9873_TR_STEREO 1 << 4 +#define TDA9873_TR_REVERSE ((1 << 3) | (1 << 2)) +#define TDA9873_TR_DUALA 1 << 2 +#define TDA9873_TR_DUALB 1 << 3 +#define TDA9873_TR_DUALAB 0 + +/* output level controls + * B5: output level switch (0 = reduced gain, 1 = normal gain) + * B6: mute (1 = muted) + * B7: auto-mute (1 = auto-mute enabled) + */ + +#define TDA9873_GAIN_NORMAL 1 << 5 +#define TDA9873_MUTE 1 << 6 +#define TDA9873_AUTOMUTE 1 << 7 + +/* Subaddress 0x01: Adjust/standard */ + +/* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB) + * Recommended value is +0 dB + */ + +#define TDA9873_STEREO_ADJ 0x06 /* 0dB gain */ + +/* Bits C6..C4 control FM stantard + * C6, C5, C4 + * 0, 0, 0 B/G (PAL FM) + * 0, 0, 1 M + * 0, 1, 0 D/K(1) + * 0, 1, 1 D/K(2) + * 1, 0, 0 D/K(3) + * 1, 0, 1 I + */ +#define TDA9873_BG 0 +#define TDA9873_M 1 +#define TDA9873_DK1 2 +#define TDA9873_DK2 3 +#define TDA9873_DK3 4 +#define TDA9873_I 5 + +/* C7 controls identification response time (1=fast/0=normal) + */ +#define TDA9873_IDR_NORM 0 +#define TDA9873_IDR_FAST 1 << 7 + + +/* Subaddress 0x02: Port data */ + +/* E1, E0 free programmable ports P1/P2 + 0, 0 both ports low + 0, 1 P1 high + 1, 0 P2 high + 1, 1 both ports high +*/ + +#define TDA9873_PORTS 3 + +/* E2: test port */ +#define TDA9873_TST_PORT 1 << 2 + +/* E5..E3 control mono output channel (together with transmission mode bit B4) + * + * E5 E4 E3 B4 OUTM + * 0 0 0 0 mono + * 0 0 1 0 DUAL B + * 0 1 0 1 mono (from stereo decoder) + */ +#define TDA9873_MOUT_MONO 0 +#define TDA9873_MOUT_FMONO 0 +#define TDA9873_MOUT_DUALA 0 +#define TDA9873_MOUT_DUALB 1 << 3 +#define TDA9873_MOUT_ST 1 << 4 +#define TDA9873_MOUT_EXTM ((1 << 4) | (1 << 3)) +#define TDA9873_MOUT_EXTL 1 << 5 +#define TDA9873_MOUT_EXTR ((1 << 5) | (1 << 3)) +#define TDA9873_MOUT_EXTLR ((1 << 5) | (1 << 4)) +#define TDA9873_MOUT_MUTE ((1 << 5) | (1 << 4) | (1 << 3)) + +/* Status bits: (chip read) */ +#define TDA9873_PONR 0 /* Power-on reset detected if = 1 */ +#define TDA9873_STEREO 2 /* Stereo sound is identified */ +#define TDA9873_DUAL 4 /* Dual sound is identified */ + +static int tda9873_getrxsubchans(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int val,mode; + + val = chip_read(chip); + mode = V4L2_TUNER_SUB_MONO; + if (val & TDA9873_STEREO) + mode = V4L2_TUNER_SUB_STEREO; + if (val & TDA9873_DUAL) + mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + v4l2_dbg(1, debug, sd, + "tda9873_getrxsubchans(): raw chip read: %d, return: %d\n", + val, mode); + return mode; +} + +static void tda9873_setaudmode(struct CHIPSTATE *chip, int mode) +{ + struct v4l2_subdev *sd = &chip->sd; + int sw_data = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK; + /* int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */ + + if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) { + v4l2_dbg(1, debug, sd, + "tda9873_setaudmode(): external input\n"); + return; + } + + v4l2_dbg(1, debug, sd, + "tda9873_setaudmode(): chip->shadow.bytes[%d] = %d\n", + TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]); + v4l2_dbg(1, debug, sd, "tda9873_setaudmode(): sw_data = %d\n", + sw_data); + + switch (mode) { + case V4L2_TUNER_MODE_MONO: + sw_data |= TDA9873_TR_MONO; + break; + case V4L2_TUNER_MODE_STEREO: + sw_data |= TDA9873_TR_STEREO; + break; + case V4L2_TUNER_MODE_LANG1: + sw_data |= TDA9873_TR_DUALA; + break; + case V4L2_TUNER_MODE_LANG2: + sw_data |= TDA9873_TR_DUALB; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + sw_data |= TDA9873_TR_DUALAB; + break; + default: + return; + } + + chip_write(chip, TDA9873_SW, sw_data); + v4l2_dbg(1, debug, sd, + "tda9873_setaudmode(): req. mode %d; chip_write: %d\n", + mode, sw_data); +} + +static int tda9873_checkit(struct CHIPSTATE *chip) +{ + int rc; + + if (-1 == (rc = chip_read2(chip,254))) + return 0; + return (rc & ~0x1f) == 0x80; +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip description - defines+functions for tda9874h and tda9874a */ +/* Dariusz Kowalewski <darekk@automex.pl> */ + +/* Subaddresses for TDA9874H and TDA9874A (slave rx) */ +#define TDA9874A_AGCGR 0x00 /* AGC gain */ +#define TDA9874A_GCONR 0x01 /* general config */ +#define TDA9874A_MSR 0x02 /* monitor select */ +#define TDA9874A_C1FRA 0x03 /* carrier 1 freq. */ +#define TDA9874A_C1FRB 0x04 /* carrier 1 freq. */ +#define TDA9874A_C1FRC 0x05 /* carrier 1 freq. */ +#define TDA9874A_C2FRA 0x06 /* carrier 2 freq. */ +#define TDA9874A_C2FRB 0x07 /* carrier 2 freq. */ +#define TDA9874A_C2FRC 0x08 /* carrier 2 freq. */ +#define TDA9874A_DCR 0x09 /* demodulator config */ +#define TDA9874A_FMER 0x0a /* FM de-emphasis */ +#define TDA9874A_FMMR 0x0b /* FM dematrix */ +#define TDA9874A_C1OLAR 0x0c /* ch.1 output level adj. */ +#define TDA9874A_C2OLAR 0x0d /* ch.2 output level adj. */ +#define TDA9874A_NCONR 0x0e /* NICAM config */ +#define TDA9874A_NOLAR 0x0f /* NICAM output level adj. */ +#define TDA9874A_NLELR 0x10 /* NICAM lower error limit */ +#define TDA9874A_NUELR 0x11 /* NICAM upper error limit */ +#define TDA9874A_AMCONR 0x12 /* audio mute control */ +#define TDA9874A_SDACOSR 0x13 /* stereo DAC output select */ +#define TDA9874A_AOSR 0x14 /* analog output select */ +#define TDA9874A_DAICONR 0x15 /* digital audio interface config */ +#define TDA9874A_I2SOSR 0x16 /* I2S-bus output select */ +#define TDA9874A_I2SOLAR 0x17 /* I2S-bus output level adj. */ +#define TDA9874A_MDACOSR 0x18 /* mono DAC output select (tda9874a) */ +#define TDA9874A_ESP 0xFF /* easy standard progr. (tda9874a) */ + +/* Subaddresses for TDA9874H and TDA9874A (slave tx) */ +#define TDA9874A_DSR 0x00 /* device status */ +#define TDA9874A_NSR 0x01 /* NICAM status */ +#define TDA9874A_NECR 0x02 /* NICAM error count */ +#define TDA9874A_DR1 0x03 /* add. data LSB */ +#define TDA9874A_DR2 0x04 /* add. data MSB */ +#define TDA9874A_LLRA 0x05 /* monitor level read-out LSB */ +#define TDA9874A_LLRB 0x06 /* monitor level read-out MSB */ +#define TDA9874A_SIFLR 0x07 /* SIF level */ +#define TDA9874A_TR2 252 /* test reg. 2 */ +#define TDA9874A_TR1 253 /* test reg. 1 */ +#define TDA9874A_DIC 254 /* device id. code */ +#define TDA9874A_SIC 255 /* software id. code */ + + +static int tda9874a_mode = 1; /* 0: A2, 1: NICAM */ +static int tda9874a_GCONR = 0xc0; /* default config. input pin: SIFSEL=0 */ +static int tda9874a_NCONR = 0x01; /* default NICAM config.: AMSEL=0,AMUTE=1 */ +static int tda9874a_ESP = 0x07; /* default standard: NICAM D/K */ +static int tda9874a_dic = -1; /* device id. code */ + +/* insmod options for tda9874a */ +static unsigned int tda9874a_SIF = UNSET; +static unsigned int tda9874a_AMSEL = UNSET; +static unsigned int tda9874a_STD = UNSET; +module_param(tda9874a_SIF, int, 0444); +module_param(tda9874a_AMSEL, int, 0444); +module_param(tda9874a_STD, int, 0444); + +/* + * initialization table for tda9874 decoder: + * - carrier 1 freq. registers (3 bytes) + * - carrier 2 freq. registers (3 bytes) + * - demudulator config register + * - FM de-emphasis register (slow identification mode) + * Note: frequency registers must be written in single i2c transfer. + */ +static struct tda9874a_MODES { + char *name; + audiocmd cmd; +} tda9874a_modelist[9] = { + { "A2, B/G", /* default */ + { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} }, + { "A2, M (Korea)", + { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} }, + { "A2, D/K (1)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} }, + { "A2, D/K (2)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} }, + { "A2, D/K (3)", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} }, + { "NICAM, I", + { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} }, + { "NICAM, B/G", + { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} }, + { "NICAM, D/K", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} }, + { "NICAM, L", + { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} } +}; + +static int tda9874a_setup(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + + chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR); + chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02); + if(tda9874a_dic == 0x11) { + chip_write(chip, TDA9874A_FMMR, 0x80); + } else { /* dic == 0x07 */ + chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd); + chip_write(chip, TDA9874A_FMMR, 0x00); + } + chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */ + chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); + chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */ + /* Note: If signal quality is poor you may want to change NICAM */ + /* error limit registers (NLELR and NUELR) to some greater values. */ + /* Then the sound would remain stereo, but won't be so clear. */ + chip_write(chip, TDA9874A_NLELR, 0x14); /* default */ + chip_write(chip, TDA9874A_NUELR, 0x50); /* default */ + + if(tda9874a_dic == 0x11) { + chip_write(chip, TDA9874A_AMCONR, 0xf9); + chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); + chip_write(chip, TDA9874A_AOSR, 0x80); + chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80); + chip_write(chip, TDA9874A_ESP, tda9874a_ESP); + } else { /* dic == 0x07 */ + chip_write(chip, TDA9874A_AMCONR, 0xfb); + chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80); + chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */ + } + v4l2_dbg(1, debug, sd, "tda9874a_setup(): %s [0x%02X].\n", + tda9874a_modelist[tda9874a_STD].name,tda9874a_STD); + return 1; +} + +static int tda9874a_getrxsubchans(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int dsr,nsr,mode; + int necr; /* just for debugging */ + + mode = V4L2_TUNER_SUB_MONO; + + if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR))) + return mode; + if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR))) + return mode; + if(-1 == (necr = chip_read2(chip,TDA9874A_NECR))) + return mode; + + /* need to store dsr/nsr somewhere */ + chip->shadow.bytes[MAXREGS-2] = dsr; + chip->shadow.bytes[MAXREGS-1] = nsr; + + if(tda9874a_mode) { + /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked. + * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates + * that sound has (temporarily) switched from NICAM to + * mono FM (or AM) on 1st sound carrier due to high NICAM bit + * error count. So in fact there is no stereo in this case :-( + * But changing the mode to V4L2_TUNER_MODE_MONO would switch + * external 4052 multiplexer in audio_hook(). + */ + if(nsr & 0x02) /* NSR.S/MB=1 */ + mode = V4L2_TUNER_SUB_STEREO; + if(nsr & 0x01) /* NSR.D/SB=1 */ + mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + } else { + if(dsr & 0x02) /* DSR.IDSTE=1 */ + mode = V4L2_TUNER_SUB_STEREO; + if(dsr & 0x04) /* DSR.IDDUA=1 */ + mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + } + + v4l2_dbg(1, debug, sd, + "tda9874a_getrxsubchans(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n", + dsr, nsr, necr, mode); + return mode; +} + +static void tda9874a_setaudmode(struct CHIPSTATE *chip, int mode) +{ + struct v4l2_subdev *sd = &chip->sd; + + /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */ + /* If auto-muting is disabled, we can hear a signal of degrading quality. */ + if (tda9874a_mode) { + if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */ + tda9874a_NCONR &= 0xfe; /* enable */ + else + tda9874a_NCONR |= 0x01; /* disable */ + chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR); + } + + /* Note: TDA9874A supports automatic FM dematrixing (FMMR register) + * and has auto-select function for audio output (AOSR register). + * Old TDA9874H doesn't support these features. + * TDA9874A also has additional mono output pin (OUTM), which + * on same (all?) tv-cards is not used, anyway (as well as MONOIN). + */ + if(tda9874a_dic == 0x11) { + int aosr = 0x80; + int mdacosr = (tda9874a_mode) ? 0x82:0x80; + + switch(mode) { + case V4L2_TUNER_MODE_MONO: + case V4L2_TUNER_MODE_STEREO: + break; + case V4L2_TUNER_MODE_LANG1: + aosr = 0x80; /* auto-select, dual A/A */ + mdacosr = (tda9874a_mode) ? 0x82:0x80; + break; + case V4L2_TUNER_MODE_LANG2: + aosr = 0xa0; /* auto-select, dual B/B */ + mdacosr = (tda9874a_mode) ? 0x83:0x81; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + aosr = 0x00; /* always route L to L and R to R */ + mdacosr = (tda9874a_mode) ? 0x82:0x80; + break; + default: + return; + } + chip_write(chip, TDA9874A_AOSR, aosr); + chip_write(chip, TDA9874A_MDACOSR, mdacosr); + + v4l2_dbg(1, debug, sd, + "tda9874a_setaudmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n", + mode, aosr, mdacosr); + + } else { /* dic == 0x07 */ + int fmmr,aosr; + + switch(mode) { + case V4L2_TUNER_MODE_MONO: + fmmr = 0x00; /* mono */ + aosr = 0x10; /* A/A */ + break; + case V4L2_TUNER_MODE_STEREO: + if(tda9874a_mode) { + fmmr = 0x00; + aosr = 0x00; /* handled by NICAM auto-mute */ + } else { + fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */ + aosr = 0x00; + } + break; + case V4L2_TUNER_MODE_LANG1: + fmmr = 0x02; /* dual */ + aosr = 0x10; /* dual A/A */ + break; + case V4L2_TUNER_MODE_LANG2: + fmmr = 0x02; /* dual */ + aosr = 0x20; /* dual B/B */ + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + fmmr = 0x02; /* dual */ + aosr = 0x00; /* dual A/B */ + break; + default: + return; + } + chip_write(chip, TDA9874A_FMMR, fmmr); + chip_write(chip, TDA9874A_AOSR, aosr); + + v4l2_dbg(1, debug, sd, + "tda9874a_setaudmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n", + mode, fmmr, aosr); + } +} + +static int tda9874a_checkit(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int dic,sic; /* device id. and software id. codes */ + + if(-1 == (dic = chip_read2(chip,TDA9874A_DIC))) + return 0; + if(-1 == (sic = chip_read2(chip,TDA9874A_SIC))) + return 0; + + v4l2_dbg(1, debug, sd, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic); + + if((dic == 0x11)||(dic == 0x07)) { + v4l2_info(sd, "found tda9874%s.\n", (dic == 0x11) ? "a" : "h"); + tda9874a_dic = dic; /* remember device id. */ + return 1; + } + return 0; /* not found */ +} + +static int tda9874a_initialize(struct CHIPSTATE *chip) +{ + if (tda9874a_SIF > 2) + tda9874a_SIF = 1; + if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist)) + tda9874a_STD = 0; + if(tda9874a_AMSEL > 1) + tda9874a_AMSEL = 0; + + if(tda9874a_SIF == 1) + tda9874a_GCONR = 0xc0; /* sound IF input 1 */ + else + tda9874a_GCONR = 0xc1; /* sound IF input 2 */ + + tda9874a_ESP = tda9874a_STD; + tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1; + + if(tda9874a_AMSEL == 0) + tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */ + else + tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */ + + tda9874a_setup(chip); + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip description - defines+functions for tda9875 */ +/* The TDA9875 is made by Philips Semiconductor + * http://www.semiconductors.philips.com + * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator + * + */ + +/* subaddresses for TDA9875 */ +#define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/ +#define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */ +#define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/ +#define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/ + +#define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/ +#define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/ +#define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/ +#define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/ + +#define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/ +#define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/ +#define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/ +#define TDA9875_MVL 0x1a /* Main volume gauche */ +#define TDA9875_MVR 0x1b /* Main volume droite */ +#define TDA9875_MBA 0x1d /* Main Basse */ +#define TDA9875_MTR 0x1e /* Main treble */ +#define TDA9875_ACS 0x1f /* Auxiliary channel select (FM) 0b0000000*/ +#define TDA9875_AVL 0x20 /* Auxiliary volume gauche */ +#define TDA9875_AVR 0x21 /* Auxiliary volume droite */ +#define TDA9875_ABA 0x22 /* Auxiliary Basse */ +#define TDA9875_ATR 0x23 /* Auxiliary treble */ + +#define TDA9875_MSR 0x02 /* Monitor select register */ +#define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */ +#define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */ +#define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */ +#define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */ +#define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */ +#define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */ +#define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/ +#define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/ +#define TDA9875_FMAT 0x0b /* FM Matrix regirter*/ + +/* values */ +#define TDA9875_MUTE_ON 0xff /* general mute */ +#define TDA9875_MUTE_OFF 0xcc /* general no mute */ + +static int tda9875_initialize(struct CHIPSTATE *chip) +{ + chip_write(chip, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/ + chip_write(chip, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/ + chip_write(chip, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/ + chip_write(chip, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/ + chip_write(chip, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/ + chip_write(chip, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/ + chip_write(chip, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/ + chip_write(chip, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/ + chip_write(chip, TDA9875_DCR, 0x00); /*Demod config 0x00*/ + chip_write(chip, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/ + chip_write(chip, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/ + chip_write(chip, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/ + chip_write(chip, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/ + + chip_write(chip, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/ + chip_write(chip, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */ + chip_write(chip, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/ + chip_write(chip, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/ + chip_write(chip, TDA9875_LOSR, 0x00); /* line out (in:mono)*/ + chip_write(chip, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */ + chip_write(chip, TDA9875_MCS, 0x44); /* Main ch select (DAC) */ + chip_write(chip, TDA9875_MVL, 0x03); /* Vol Main left 10dB */ + chip_write(chip, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/ + chip_write(chip, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/ + chip_write(chip, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/ + chip_write(chip, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/ + chip_write(chip, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/ + chip_write(chip, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/ + chip_write(chip, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/ + chip_write(chip, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/ + + chip_write(chip, TDA9875_MUT, 0xcc); /* General mute */ + return 0; +} + +static int tda9875_volume(int val) { return (unsigned char)(val / 602 - 84); } +static int tda9875_bass(int val) { return (unsigned char)(max(-12, val / 2115 - 15)); } +static int tda9875_treble(int val) { return (unsigned char)(val / 2622 - 12); } + +/* ----------------------------------------------------------------------- */ + + +/* *********************** * + * i2c interface functions * + * *********************** */ + +static int tda9875_checkit(struct CHIPSTATE *chip) +{ + struct v4l2_subdev *sd = &chip->sd; + int dic, rev; + + dic = chip_read2(chip, 254); + rev = chip_read2(chip, 255); + + if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */ + v4l2_info(sd, "found tda9875%s rev. %d.\n", + dic == 0 ? "" : "A", rev); + return 1; + } + return 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tea6420 */ + +#define TEA6300_VL 0x00 /* volume left */ +#define TEA6300_VR 0x01 /* volume right */ +#define TEA6300_BA 0x02 /* bass */ +#define TEA6300_TR 0x03 /* treble */ +#define TEA6300_FA 0x04 /* fader control */ +#define TEA6300_S 0x05 /* switch register */ + /* values for those registers: */ +#define TEA6300_S_SA 0x01 /* stereo A input */ +#define TEA6300_S_SB 0x02 /* stereo B */ +#define TEA6300_S_SC 0x04 /* stereo C */ +#define TEA6300_S_GMU 0x80 /* general mute */ + +#define TEA6320_V 0x00 /* volume (0-5)/loudness off (6)/zero crossing mute(7) */ +#define TEA6320_FFR 0x01 /* fader front right (0-5) */ +#define TEA6320_FFL 0x02 /* fader front left (0-5) */ +#define TEA6320_FRR 0x03 /* fader rear right (0-5) */ +#define TEA6320_FRL 0x04 /* fader rear left (0-5) */ +#define TEA6320_BA 0x05 /* bass (0-4) */ +#define TEA6320_TR 0x06 /* treble (0-4) */ +#define TEA6320_S 0x07 /* switch register */ + /* values for those registers: */ +#define TEA6320_S_SA 0x07 /* stereo A input */ +#define TEA6320_S_SB 0x06 /* stereo B */ +#define TEA6320_S_SC 0x05 /* stereo C */ +#define TEA6320_S_SD 0x04 /* stereo D */ +#define TEA6320_S_GMU 0x80 /* general mute */ + +#define TEA6420_S_SA 0x00 /* stereo A input */ +#define TEA6420_S_SB 0x01 /* stereo B */ +#define TEA6420_S_SC 0x02 /* stereo C */ +#define TEA6420_S_SD 0x03 /* stereo D */ +#define TEA6420_S_SE 0x04 /* stereo E */ +#define TEA6420_S_GMU 0x05 /* general mute */ + +static int tea6300_shift10(int val) { return val >> 10; } +static int tea6300_shift12(int val) { return val >> 12; } + +/* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */ +/* 0x0c mirror those immediately higher) */ +static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; } +static int tea6320_shift11(int val) { return val >> 11; } +static int tea6320_initialize(struct CHIPSTATE * chip) +{ + chip_write(chip, TEA6320_FFR, 0x3f); + chip_write(chip, TEA6320_FFL, 0x3f); + chip_write(chip, TEA6320_FRR, 0x3f); + chip_write(chip, TEA6320_FRL, 0x3f); + + return 0; +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for tda8425 */ + +#define TDA8425_VL 0x00 /* volume left */ +#define TDA8425_VR 0x01 /* volume right */ +#define TDA8425_BA 0x02 /* bass */ +#define TDA8425_TR 0x03 /* treble */ +#define TDA8425_S1 0x08 /* switch functions */ + /* values for those registers: */ +#define TDA8425_S1_OFF 0xEE /* audio off (mute on) */ +#define TDA8425_S1_CH1 0xCE /* audio channel 1 (mute off) - "linear stereo" mode */ +#define TDA8425_S1_CH2 0xCF /* audio channel 2 (mute off) - "linear stereo" mode */ +#define TDA8425_S1_MU 0x20 /* mute bit */ +#define TDA8425_S1_STEREO 0x18 /* stereo bits */ +#define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */ +#define TDA8425_S1_STEREO_LINEAR 0x08 /* linear stereo */ +#define TDA8425_S1_STEREO_PSEUDO 0x10 /* pseudo stereo */ +#define TDA8425_S1_STEREO_MONO 0x00 /* forced mono */ +#define TDA8425_S1_ML 0x06 /* language selector */ +#define TDA8425_S1_ML_SOUND_A 0x02 /* sound a */ +#define TDA8425_S1_ML_SOUND_B 0x04 /* sound b */ +#define TDA8425_S1_ML_STEREO 0x06 /* stereo */ +#define TDA8425_S1_IS 0x01 /* channel selector */ + + +static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; } +static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; } + +static void tda8425_setaudmode(struct CHIPSTATE *chip, int mode) +{ + int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1; + + switch (mode) { + case V4L2_TUNER_MODE_LANG1: + s1 |= TDA8425_S1_ML_SOUND_A; + s1 |= TDA8425_S1_STEREO_PSEUDO; + break; + case V4L2_TUNER_MODE_LANG2: + s1 |= TDA8425_S1_ML_SOUND_B; + s1 |= TDA8425_S1_STEREO_PSEUDO; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + s1 |= TDA8425_S1_ML_STEREO; + s1 |= TDA8425_S1_STEREO_LINEAR; + break; + case V4L2_TUNER_MODE_MONO: + s1 |= TDA8425_S1_ML_STEREO; + s1 |= TDA8425_S1_STEREO_MONO; + break; + case V4L2_TUNER_MODE_STEREO: + s1 |= TDA8425_S1_ML_STEREO; + s1 |= TDA8425_S1_STEREO_SPATIAL; + break; + default: + return; + } + chip_write(chip,TDA8425_S1,s1); +} + + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for pic16c54 (PV951) */ + +/* the registers of 16C54, I2C sub address. */ +#define PIC16C54_REG_KEY_CODE 0x01 /* Not use. */ +#define PIC16C54_REG_MISC 0x02 + +/* bit definition of the RESET register, I2C data. */ +#define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */ + /* code of remote controller */ +#define PIC16C54_MISC_MTS_MAIN 0x02 /* bit 1 */ +#define PIC16C54_MISC_MTS_SAP 0x04 /* bit 2 */ +#define PIC16C54_MISC_MTS_BOTH 0x08 /* bit 3 */ +#define PIC16C54_MISC_SND_MUTE 0x10 /* bit 4, Mute Audio(Line-in and Tuner) */ +#define PIC16C54_MISC_SND_NOTMUTE 0x20 /* bit 5 */ +#define PIC16C54_MISC_SWITCH_TUNER 0x40 /* bit 6 , Switch to Line-in */ +#define PIC16C54_MISC_SWITCH_LINE 0x80 /* bit 7 , Switch to Tuner */ + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - defines+functions for TA8874Z */ + +/* write 1st byte */ +#define TA8874Z_LED_STE 0x80 +#define TA8874Z_LED_BIL 0x40 +#define TA8874Z_LED_EXT 0x20 +#define TA8874Z_MONO_SET 0x10 +#define TA8874Z_MUTE 0x08 +#define TA8874Z_F_MONO 0x04 +#define TA8874Z_MODE_SUB 0x02 +#define TA8874Z_MODE_MAIN 0x01 + +/* write 2nd byte */ +/*#define TA8874Z_TI 0x80 */ /* test mode */ +#define TA8874Z_SEPARATION 0x3f +#define TA8874Z_SEPARATION_DEFAULT 0x10 + +/* read */ +#define TA8874Z_B1 0x80 +#define TA8874Z_B0 0x40 +#define TA8874Z_CHAG_FLAG 0x20 + +/* + * B1 B0 + * mono L H + * stereo L L + * BIL H L + */ +static int ta8874z_getrxsubchans(struct CHIPSTATE *chip) +{ + int val, mode; + + val = chip_read(chip); + mode = V4L2_TUNER_SUB_MONO; + if (val & TA8874Z_B1){ + mode |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; + }else if (!(val & TA8874Z_B0)){ + mode = V4L2_TUNER_SUB_STEREO; + } + /* v4l2_dbg(1, debug, &chip->sd, + "ta8874z_getrxsubchans(): raw chip read: 0x%02x, return: 0x%02x\n", + val, mode); */ + return mode; +} + +static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}}; +static audiocmd ta8874z_both = {2, { TA8874Z_MODE_MAIN | TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}}; + +static void ta8874z_setaudmode(struct CHIPSTATE *chip, int mode) +{ + struct v4l2_subdev *sd = &chip->sd; + int update = 1; + audiocmd *t = NULL; + + v4l2_dbg(1, debug, sd, "ta8874z_setaudmode(): mode: 0x%02x\n", mode); + + switch(mode){ + case V4L2_TUNER_MODE_MONO: + t = &ta8874z_mono; + break; + case V4L2_TUNER_MODE_STEREO: + t = &ta8874z_stereo; + break; + case V4L2_TUNER_MODE_LANG1: + t = &ta8874z_main; + break; + case V4L2_TUNER_MODE_LANG2: + t = &ta8874z_sub; + break; + case V4L2_TUNER_MODE_LANG1_LANG2: + t = &ta8874z_both; + break; + default: + update = 0; + } + + if(update) + chip_cmd(chip, "TA8874Z", t); +} + +static int ta8874z_checkit(struct CHIPSTATE *chip) +{ + int rc; + rc = chip_read(chip); + return ((rc & 0x1f) == 0x1f) ? 1 : 0; +} + +/* ---------------------------------------------------------------------- */ +/* audio chip descriptions - struct CHIPDESC */ + +/* insmod options to enable/disable individual audio chips */ +static int tda8425 = 1; +static int tda9840 = 1; +static int tda9850 = 1; +static int tda9855 = 1; +static int tda9873 = 1; +static int tda9874a = 1; +static int tda9875 = 1; +static int tea6300; /* default 0 - address clash with msp34xx */ +static int tea6320; /* default 0 - address clash with msp34xx */ +static int tea6420 = 1; +static int pic16c54 = 1; +static int ta8874z; /* default 0 - address clash with tda9840 */ + +module_param(tda8425, int, 0444); +module_param(tda9840, int, 0444); +module_param(tda9850, int, 0444); +module_param(tda9855, int, 0444); +module_param(tda9873, int, 0444); +module_param(tda9874a, int, 0444); +module_param(tda9875, int, 0444); +module_param(tea6300, int, 0444); +module_param(tea6320, int, 0444); +module_param(tea6420, int, 0444); +module_param(pic16c54, int, 0444); +module_param(ta8874z, int, 0444); + +static struct CHIPDESC chiplist[] = { + { + .name = "tda9840", + .insmodopt = &tda9840, + .addr_lo = I2C_ADDR_TDA9840 >> 1, + .addr_hi = I2C_ADDR_TDA9840 >> 1, + .registers = 5, + .flags = CHIP_NEED_CHECKMODE, + + /* callbacks */ + .checkit = tda9840_checkit, + .getrxsubchans = tda9840_getrxsubchans, + .setaudmode = tda9840_setaudmode, + + .init = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN + /* ,TDA9840_SW, TDA9840_MONO */} } + }, + { + .name = "tda9873h", + .insmodopt = &tda9873, + .addr_lo = I2C_ADDR_TDA985x_L >> 1, + .addr_hi = I2C_ADDR_TDA985x_H >> 1, + .registers = 3, + .flags = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE, + + /* callbacks */ + .checkit = tda9873_checkit, + .getrxsubchans = tda9873_getrxsubchans, + .setaudmode = tda9873_setaudmode, + + .init = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } }, + .inputreg = TDA9873_SW, + .inputmute = TDA9873_MUTE | TDA9873_AUTOMUTE, + .inputmap = {0xa0, 0xa2, 0xa0, 0xa0}, + .inputmask = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE, + + }, + { + .name = "tda9874h/a", + .insmodopt = &tda9874a, + .addr_lo = I2C_ADDR_TDA9874 >> 1, + .addr_hi = I2C_ADDR_TDA9874 >> 1, + .flags = CHIP_NEED_CHECKMODE, + + /* callbacks */ + .initialize = tda9874a_initialize, + .checkit = tda9874a_checkit, + .getrxsubchans = tda9874a_getrxsubchans, + .setaudmode = tda9874a_setaudmode, + }, + { + .name = "tda9875", + .insmodopt = &tda9875, + .addr_lo = I2C_ADDR_TDA9875 >> 1, + .addr_hi = I2C_ADDR_TDA9875 >> 1, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE, + + /* callbacks */ + .initialize = tda9875_initialize, + .checkit = tda9875_checkit, + .volfunc = tda9875_volume, + .bassfunc = tda9875_bass, + .treblefunc = tda9875_treble, + .leftreg = TDA9875_MVL, + .rightreg = TDA9875_MVR, + .bassreg = TDA9875_MBA, + .treblereg = TDA9875_MTR, + .volinit = 58880, + }, + { + .name = "tda9850", + .insmodopt = &tda9850, + .addr_lo = I2C_ADDR_TDA985x_L >> 1, + .addr_hi = I2C_ADDR_TDA985x_H >> 1, + .registers = 11, + + .getrxsubchans = tda985x_getrxsubchans, + .setaudmode = tda985x_setaudmode, + + .init = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } } + }, + { + .name = "tda9855", + .insmodopt = &tda9855, + .addr_lo = I2C_ADDR_TDA985x_L >> 1, + .addr_hi = I2C_ADDR_TDA985x_H >> 1, + .registers = 11, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE, + + .leftreg = TDA9855_VL, + .rightreg = TDA9855_VR, + .bassreg = TDA9855_BA, + .treblereg = TDA9855_TR, + + /* callbacks */ + .volfunc = tda9855_volume, + .bassfunc = tda9855_bass, + .treblefunc = tda9855_treble, + .getrxsubchans = tda985x_getrxsubchans, + .setaudmode = tda985x_setaudmode, + + .init = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2, + TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT, + TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM, + 0x07, 0x10, 0x10, 0x03 }} + }, + { + .name = "tea6300", + .insmodopt = &tea6300, + .addr_lo = I2C_ADDR_TEA6300 >> 1, + .addr_hi = I2C_ADDR_TEA6300 >> 1, + .registers = 6, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TEA6300_VR, + .rightreg = TEA6300_VL, + .bassreg = TEA6300_BA, + .treblereg = TEA6300_TR, + + /* callbacks */ + .volfunc = tea6300_shift10, + .bassfunc = tea6300_shift12, + .treblefunc = tea6300_shift12, + + .inputreg = TEA6300_S, + .inputmap = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC }, + .inputmute = TEA6300_S_GMU, + }, + { + .name = "tea6320", + .insmodopt = &tea6320, + .addr_lo = I2C_ADDR_TEA6300 >> 1, + .addr_hi = I2C_ADDR_TEA6300 >> 1, + .registers = 8, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TEA6320_V, + .rightreg = TEA6320_V, + .bassreg = TEA6320_BA, + .treblereg = TEA6320_TR, + + /* callbacks */ + .initialize = tea6320_initialize, + .volfunc = tea6320_volume, + .bassfunc = tea6320_shift11, + .treblefunc = tea6320_shift11, + + .inputreg = TEA6320_S, + .inputmap = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD }, + .inputmute = TEA6300_S_GMU, + }, + { + .name = "tea6420", + .insmodopt = &tea6420, + .addr_lo = I2C_ADDR_TEA6420 >> 1, + .addr_hi = I2C_ADDR_TEA6420 >> 1, + .registers = 1, + .flags = CHIP_HAS_INPUTSEL, + + .inputreg = -1, + .inputmap = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC }, + .inputmute = TEA6420_S_GMU, + .inputmask = 0x07, + }, + { + .name = "tda8425", + .insmodopt = &tda8425, + .addr_lo = I2C_ADDR_TDA8425 >> 1, + .addr_hi = I2C_ADDR_TDA8425 >> 1, + .registers = 9, + .flags = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL, + + .leftreg = TDA8425_VL, + .rightreg = TDA8425_VR, + .bassreg = TDA8425_BA, + .treblereg = TDA8425_TR, + + /* callbacks */ + .volfunc = tda8425_shift10, + .bassfunc = tda8425_shift12, + .treblefunc = tda8425_shift12, + .setaudmode = tda8425_setaudmode, + + .inputreg = TDA8425_S1, + .inputmap = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 }, + .inputmute = TDA8425_S1_OFF, + + }, + { + .name = "pic16c54 (PV951)", + .insmodopt = &pic16c54, + .addr_lo = I2C_ADDR_PIC16C54 >> 1, + .addr_hi = I2C_ADDR_PIC16C54>> 1, + .registers = 2, + .flags = CHIP_HAS_INPUTSEL, + + .inputreg = PIC16C54_REG_MISC, + .inputmap = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER, + PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, + PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE, + PIC16C54_MISC_SND_MUTE}, + .inputmute = PIC16C54_MISC_SND_MUTE, + }, + { + .name = "ta8874z", + .checkit = ta8874z_checkit, + .insmodopt = &ta8874z, + .addr_lo = I2C_ADDR_TDA9840 >> 1, + .addr_hi = I2C_ADDR_TDA9840 >> 1, + .registers = 2, + + /* callbacks */ + .getrxsubchans = ta8874z_getrxsubchans, + .setaudmode = ta8874z_setaudmode, + + .init = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}}, + }, + { .name = NULL } /* EOF */ +}; + + +/* ---------------------------------------------------------------------- */ + +static int tvaudio_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + chip->muted = ctrl->val; + if (chip->muted) + chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask); + else + chip_write_masked(chip,desc->inputreg, + desc->inputmap[chip->input],desc->inputmask); + return 0; + case V4L2_CID_AUDIO_VOLUME: { + u32 volume, balance; + u32 left, right; + + volume = chip->volume->val; + balance = chip->balance->val; + left = (min(65536U - balance, 32768U) * volume) / 32768U; + right = (min(balance, 32768U) * volume) / 32768U; + + chip_write(chip, desc->leftreg, desc->volfunc(left)); + chip_write(chip, desc->rightreg, desc->volfunc(right)); + return 0; + } + case V4L2_CID_AUDIO_BASS: + chip_write(chip, desc->bassreg, desc->bassfunc(ctrl->val)); + return 0; + case V4L2_CID_AUDIO_TREBLE: + chip_write(chip, desc->treblereg, desc->treblefunc(ctrl->val)); + return 0; + } + return -EINVAL; +} + + +/* ---------------------------------------------------------------------- */ +/* video4linux interface */ + +static int tvaudio_s_radio(struct v4l2_subdev *sd) +{ + struct CHIPSTATE *chip = to_state(sd); + + chip->radio = 1; + /* del_timer(&chip->wt); */ + return 0; +} + +static int tvaudio_s_routing(struct v4l2_subdev *sd, + u32 input, u32 output, u32 config) +{ + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + if (!(desc->flags & CHIP_HAS_INPUTSEL)) + return 0; + if (input >= 4) + return -EINVAL; + /* There are four inputs: tuner, radio, extern and intern. */ + chip->input = input; + if (chip->muted) + return 0; + chip_write_masked(chip, desc->inputreg, + desc->inputmap[chip->input], desc->inputmask); + return 0; +} + +static int tvaudio_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt) +{ + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + if (!desc->setaudmode) + return 0; + if (chip->radio) + return 0; + + switch (vt->audmode) { + case V4L2_TUNER_MODE_MONO: + case V4L2_TUNER_MODE_STEREO: + case V4L2_TUNER_MODE_LANG1: + case V4L2_TUNER_MODE_LANG2: + case V4L2_TUNER_MODE_LANG1_LANG2: + break; + default: + return -EINVAL; + } + chip->audmode = vt->audmode; + + if (chip->thread) + wake_up_process(chip->thread); + else + desc->setaudmode(chip, vt->audmode); + + return 0; +} + +static int tvaudio_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + if (!desc->getrxsubchans) + return 0; + if (chip->radio) + return 0; + + vt->audmode = chip->audmode; + vt->rxsubchans = desc->getrxsubchans(chip); + vt->capability |= V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + + return 0; +} + +static int tvaudio_s_std(struct v4l2_subdev *sd, v4l2_std_id std) +{ + struct CHIPSTATE *chip = to_state(sd); + + chip->radio = 0; + return 0; +} + +static int tvaudio_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) +{ + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + /* For chips that provide getrxsubchans and setaudmode, and doesn't + automatically follows the stereo carrier, a kthread is + created to set the audio standard. In this case, when then + the video channel is changed, tvaudio starts on MONO mode. + After waiting for 2 seconds, the kernel thread is called, + to follow whatever audio standard is pointed by the + audio carrier. + */ + if (chip->thread) { + desc->setaudmode(chip, V4L2_TUNER_MODE_MONO); + chip->prevmode = -1; /* reset previous mode */ + mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000)); + } + return 0; +} + +static int tvaudio_log_status(struct v4l2_subdev *sd) +{ + struct CHIPSTATE *chip = to_state(sd); + struct CHIPDESC *desc = chip->desc; + + v4l2_info(sd, "Chip: %s\n", desc->name); + v4l2_ctrl_handler_log_status(&chip->hdl, sd->name); + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_ctrl_ops tvaudio_ctrl_ops = { + .s_ctrl = tvaudio_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops tvaudio_core_ops = { + .log_status = tvaudio_log_status, + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, +}; + +static const struct v4l2_subdev_tuner_ops tvaudio_tuner_ops = { + .s_radio = tvaudio_s_radio, + .s_frequency = tvaudio_s_frequency, + .s_tuner = tvaudio_s_tuner, + .g_tuner = tvaudio_g_tuner, +}; + +static const struct v4l2_subdev_audio_ops tvaudio_audio_ops = { + .s_routing = tvaudio_s_routing, +}; + +static const struct v4l2_subdev_video_ops tvaudio_video_ops = { + .s_std = tvaudio_s_std, +}; + +static const struct v4l2_subdev_ops tvaudio_ops = { + .core = &tvaudio_core_ops, + .tuner = &tvaudio_tuner_ops, + .audio = &tvaudio_audio_ops, + .video = &tvaudio_video_ops, +}; + +/* ----------------------------------------------------------------------- */ + + +/* i2c registration */ + +static int tvaudio_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct CHIPSTATE *chip; + struct CHIPDESC *desc; + struct v4l2_subdev *sd; + + if (debug) { + printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n"); + printk(KERN_INFO "tvaudio: known chips: "); + for (desc = chiplist; desc->name != NULL; desc++) + printk("%s%s", (desc == chiplist) ? "" : ", ", desc->name); + printk("\n"); + } + + chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + sd = &chip->sd; + v4l2_i2c_subdev_init(sd, client, &tvaudio_ops); + + /* find description for the chip */ + v4l2_dbg(1, debug, sd, "chip found @ 0x%x\n", client->addr<<1); + for (desc = chiplist; desc->name != NULL; desc++) { + if (0 == *(desc->insmodopt)) + continue; + if (client->addr < desc->addr_lo || + client->addr > desc->addr_hi) + continue; + if (desc->checkit && !desc->checkit(chip)) + continue; + break; + } + if (desc->name == NULL) { + v4l2_dbg(1, debug, sd, "no matching chip description found\n"); + return -EIO; + } + v4l2_info(sd, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name); + if (desc->flags) { + v4l2_dbg(1, debug, sd, "matches:%s%s%s.\n", + (desc->flags & CHIP_HAS_VOLUME) ? " volume" : "", + (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "", + (desc->flags & CHIP_HAS_INPUTSEL) ? " audiomux" : ""); + } + + /* fill required data structures */ + if (!id) + strlcpy(client->name, desc->name, I2C_NAME_SIZE); + chip->desc = desc; + chip->shadow.count = desc->registers+1; + chip->prevmode = -1; + chip->audmode = V4L2_TUNER_MODE_LANG1; + + /* initialization */ + if (desc->initialize != NULL) + desc->initialize(chip); + else + chip_cmd(chip, "init", &desc->init); + + v4l2_ctrl_handler_init(&chip->hdl, 5); + if (desc->flags & CHIP_HAS_INPUTSEL) + v4l2_ctrl_new_std(&chip->hdl, &tvaudio_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); + if (desc->flags & CHIP_HAS_VOLUME) { + if (!desc->volfunc) { + /* This shouldn't be happen. Warn user, but keep working + without volume controls + */ + v4l2_info(sd, "volume callback undefined!\n"); + desc->flags &= ~CHIP_HAS_VOLUME; + } else { + chip->volume = v4l2_ctrl_new_std(&chip->hdl, + &tvaudio_ctrl_ops, V4L2_CID_AUDIO_VOLUME, + 0, 65535, 65535 / 100, + desc->volinit ? desc->volinit : 65535); + chip->balance = v4l2_ctrl_new_std(&chip->hdl, + &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BALANCE, + 0, 65535, 65535 / 100, 32768); + v4l2_ctrl_cluster(2, &chip->volume); + } + } + if (desc->flags & CHIP_HAS_BASSTREBLE) { + if (!desc->bassfunc || !desc->treblefunc) { + /* This shouldn't be happen. Warn user, but keep working + without bass/treble controls + */ + v4l2_info(sd, "bass/treble callbacks undefined!\n"); + desc->flags &= ~CHIP_HAS_BASSTREBLE; + } else { + v4l2_ctrl_new_std(&chip->hdl, + &tvaudio_ctrl_ops, V4L2_CID_AUDIO_BASS, + 0, 65535, 65535 / 100, + desc->bassinit ? desc->bassinit : 32768); + v4l2_ctrl_new_std(&chip->hdl, + &tvaudio_ctrl_ops, V4L2_CID_AUDIO_TREBLE, + 0, 65535, 65535 / 100, + desc->trebleinit ? desc->trebleinit : 32768); + } + } + + sd->ctrl_handler = &chip->hdl; + if (chip->hdl.error) { + int err = chip->hdl.error; + + v4l2_ctrl_handler_free(&chip->hdl); + return err; + } + /* set controls to the default values */ + v4l2_ctrl_handler_setup(&chip->hdl); + + chip->thread = NULL; + init_timer(&chip->wt); + if (desc->flags & CHIP_NEED_CHECKMODE) { + if (!desc->getrxsubchans || !desc->setaudmode) { + /* This shouldn't be happen. Warn user, but keep working + without kthread + */ + v4l2_info(sd, "set/get mode callbacks undefined!\n"); + return 0; + } + /* start async thread */ + chip->wt.function = chip_thread_wake; + chip->wt.data = (unsigned long)chip; + chip->thread = kthread_run(chip_thread, chip, "%s", + client->name); + if (IS_ERR(chip->thread)) { + v4l2_warn(sd, "failed to create kthread\n"); + chip->thread = NULL; + } + } + return 0; +} + +static int tvaudio_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct CHIPSTATE *chip = to_state(sd); + + del_timer_sync(&chip->wt); + if (chip->thread) { + /* shutdown async thread */ + kthread_stop(chip->thread); + chip->thread = NULL; + } + + v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(&chip->hdl); + return 0; +} + +/* This driver supports many devices and the idea is to let the driver + detect which device is present. So rather than listing all supported + devices here, we pretend to support a single, fake device type. */ +static const struct i2c_device_id tvaudio_id[] = { + { "tvaudio", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tvaudio_id); + +static struct i2c_driver tvaudio_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "tvaudio", + }, + .probe = tvaudio_probe, + .remove = tvaudio_remove, + .id_table = tvaudio_id, +}; + +module_i2c_driver(tvaudio_driver); |